<template>
    <el-container class="home-container">
        <el-header>
            <div>
                <img src="../assets/img/logo.png" alt="Vue">
                <span class="title">电商后台管理系统</span>
            </div>
            <el-button type="info" @click="logout">退出</el-button>
        </el-header>
        <el-container>
            <el-aside :width="isCollapse ? '64px' : '200px'">
                <div class="toggle-button" @click="toggleCollapse">
                    |||
                </div>
                <el-menu
                        :collapse-transition="false"
                        :collapse="isCollapse"
                        background-color="#333744"
                        text-color="#fff"
                        active-text-color="#409Eff"
                        :default-active="activePath"
                        unique-opened
                        router
                >
                    <el-submenu :index="'/'+item.path" v-for="item in menuList" :key="item.id">
                        <template slot="title">
                            <i :class="iconObj[item.id + '']"></i>
                            <span>{{item.authName}}</span>
                        </template>
                        <el-menu-item :index="'/' + subItem.path" v-for="subItem in item.children" :key="subItem.id" @click="saveNavState('/' + subItem.path)">
                            <template slot="title">
                                <i class="el-icon-menu"></i>
                                <span>{{subItem.authName}}</span>
                            </template>
                        </el-menu-item>
                    </el-submenu>
                </el-menu>
            </el-aside>
            <el-main>
                <router-view></router-view>
            </el-main>
        </el-container>
    </el-container>
</template>

<script>
  import 'assets/fonts/iconfont';
  import 'assets/fonts/iconfont.css';
  export default {
    name: "Home",
    data() {
      return {
        isCollapse:false,
        menuList:[],
        iconObj:{
          '125':'iconfont icon-user',
          '103':'iconfont icon-tijikongjian',
          '101':'iconfont icon-shangpin',
          '102':'iconfont icon-danju',
          '145':'iconfont icon-baobiao'
        },
        activePath:'',
      }
    },
    created(){
      this.getMenuList();
      // this.activePath = window.sessionStorage.getItem('activePath');
      this.activePath = window.location.pathname;
    },
    methods: {
      logout() {
        window.sessionStorage.clear();
        this.$router.push('/login');
        this.$message.success('退出成功');
      },
      toggleCollapse(){
        this.isCollapse = ! this.isCollapse;
      },
      async getMenuList(){
        const {data:res} = await this.$http({
          url:'menus',
          method:'get',
        });
        if (res.meta.status === 403) return this.$message.error(res.meta.msg);
        if (res.meta.status !== 200) return this.$message('菜单列表获取失败');
        this.menuList = res.data;
      },
      saveNavState(activePath){
        window.sessionStorage.setItem('activePath',activePath);
      }
    }
  }
</script>

<style scoped>
    .home-container {
        height: 100%;

    }

    .el-header {
        display: flex;
        background-color: #373d41;
        justify-content: space-between;
        padding-left: 0;
        align-items: center;
        color: #ffffff;
        font-size: 20px;
    }

    .el-header div {
        display: flex;
        align-items: center;

    }

    .el-header div span {
        margin-left: 15px;
    }

    .el-aside {
        background-color: #333744;
    }
    .el-aside .el-menu{
        border-right: none;
    }

    .toggle-button {
        text-align: center !important;
        background-color: #4a5064;
        font-size: 10px;
        line-height: 24px;
        color: white;
        letter-spacing: 0.2em;
        cursor:pointer;
    }

    .el-aside .el-menu span {
        margin-left: 10px;
    }

    .el-icon-menu {
        margin-right: 0 !important;
    }

    .el-main {
        background-color: #eaedf1;
    }

    img {
        width: 60px;
        height: 60px;
    }

    .title {
        font-size: 20px;
        line-height: 60px;
    }
</style>